<template>
    <div>
        <div class="search">
            <input v-model="keyword"  class="search-input" type="text" placeholder="输入城市名或拼音" />
        </div>
        <div class="search-content" v-show="keyword" ref="search">
            <ul>
                <li class="search-item border-bottom" v-for="item of list" :key="item.id" @click.stop="selectCity(item.name)">
                    {{item.name}}
                </li>
                <li class="search-item border-bottom" v-show="hasNoData">
                    没有找到匹配数据
                </li>
            </ul>
        </div>
    </div>
</template>

<script>
import Bscroll from "better-scroll";
import { mapMutations } from "vuex";
export default {
  props: {
    cities: {
      type: Object,
      default: {}
    }
  },
  data() {
    return {
      keyword: "",
      list: [],
      timer: null
    };
  },
  computed: {
    hasNoData() {
      return !this.list.length;
    }
  },
  methods:{
    selectCity(city){
        this.$emit('select',city)
    }
  },
  watch: {
    keyword() {
      if (this.timer) {
        clearTimeout(this.timer);
      }
      if (!this.keyword) {
        this.list = [];
        return;
      }
      this.timer=setTimeout(()=>{
          const result=[]
          for(let i in this.cities) {
              this.cities[i].forEach(value=>{
                  if(value.spell.indexOf(this.keyword) > -1 || value.name.indexOf(this.keyword) > -1) {
                     result.push(value) 
                  }
              })
          }
          this.list=result
      },100)
    }
  },
  mounted () {
    this.scroll = new Bscroll(this.$refs.search)
  }
};
</script>

<style scoped lang="stylus" rel="stylesheet/stylus">
@import '~styles/varibles.styl';

.search {
    height: 0.72rem;
    padding: 0 0.1rem;
    background: $bgColor;

    .search-input {
        box-sizing: border-box;
        width: 100%;
        height: 0.62rem;
        padding: 0 0.1rem;
        line-height: 0.62rem;
        text-align: center;
        border-radius: 0.06rem;
        color: #666;
    }
}

.search-content {
    z-index: 1;
    overflow: hidden;
    position: absolute;
    top: 1.58rem;
    left: 0;
    right: 0;
    bottom: 0;
    background: #eee;

    .search-item {
        line-height: 0.62rem;
        padding-left: 0.2rem;
        background: #fff;
        color: #666;
    }
}
</style>
